CC = x86_64-unknown-redox-gcc
AR = x86_64-unknown-redox-ar

AMDGPU_SRC ?= ../amdgpu-source/gpu/drm/amd
TTM_SRC ?= ../amdgpu-source/gpu/drm/ttm
AMDGPU_INCLUDES ?= ../amdgpu-source/include
LINUX_KPI ?= ../../drivers/linux-kpi/src/c_headers

CFLAGS ?= -D__redox__ -D__KERNEL__ -DCONFIG_DRM_AMDGPU -DCONFIG_DRM_AMD_DC \
	-DCONFIG_DRM_AMD_DC_DML2=1 \
	-DCONFIG_DRM_AMD_DC_FP -DCONFIG_DRM_AMD_ACP \
	-I$(LINUX_KPI) \
	-I. \
	-I$(AMDGPU_INCLUDES) \
	-I$(AMDGPU_INCLUDES)/drm \
	-I$(AMDGPU_SRC)/include \
	-I$(AMDGPU_SRC)/include/asic_reg \
	-I$(AMDGPU_SRC)/display \
	-I$(AMDGPU_SRC)/display/dc \
	-I$(AMDGPU_SRC)/display/dc/dml \
	-I$(AMDGPU_SRC)/display/dc/dcn20 \
	-I$(AMDGPU_SRC)/display/dc/dcn21 \
	-I$(AMDGPU_SRC)/display/dc/dcn30 \
	-I$(AMDGPU_SRC)/display/dc/dcn301 \
	-I$(AMDGPU_SRC)/display/dc/dcn31 \
	-I$(AMDGPU_SRC)/display/dc/dcn32 \
	-I$(AMDGPU_SRC)/display/dc/dcn35 \
	-I$(AMDGPU_SRC)/display/dc/dml2_0 \
	-I$(AMDGPU_SRC)/display/dc/dml2_0/dml21 \
	-I$(AMDGPU_SRC)/display/dmub \
	-I$(AMDGPU_SRC)/display/modules \
	-I$(AMDGPU_SRC)/display/modules/freesync \
	-I$(AMDGPU_SRC)/display/modules/color \
	-I$(AMDGPU_SRC)/display/modules/info_packet \
	-I$(AMDGPU_SRC)/display/modules/power \
	-I$(AMDGPU_SRC)/pm/swsmu \
	-I$(AMDGPU_SRC)/pm/swsmu/inc \
	-I$(AMDGPU_SRC)/pm/powerplay \
	-I$(AMDGPU_SRC)/pm/powerplay/inc \
	-I$(AMDGPU_SRC)/pm/powerplay/hwmgr \
	-fPIC -O2 -Wall -Wno-unused-function -Wno-unused-variable \
	-Wno-address-of-packed-member -Wno-initializer-overrides

LDFLAGS ?= -shared
LDLIBS ?= -lredox_driver_sys -llinux_kpi -lm -lpthread

GLUE_OBJS := redox_stubs.o amdgpu_redox_main.o
CORE_SRCS := \
	$(AMDGPU_SRC)/amdgpu/amdgpu_device.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_drv.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_i2c.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_atombios.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_atombios_crtc.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_bios.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_mode.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_display.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_fb.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_gem.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_object.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_gmc.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_mmhub.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_irq.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_ring.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_fence.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_ttm.c \
	$(AMDGPU_SRC)/amdgpu/amdgpu_bo_list.c
CORE_OBJS := $(patsubst %.c,%.o,$(notdir $(CORE_SRCS)))
DISPLAY_SRCS := $(shell find $(AMDGPU_SRC)/display -name '*.c')
DISPLAY_OBJS := $(patsubst %.c,%.o,$(notdir $(DISPLAY_SRCS)))
TTM_SRCS := $(shell find $(TTM_SRC) -name '*.c')
TTM_OBJS := $(patsubst %.c,%.o,$(notdir $(TTM_SRCS)))

ALL_OBJS := $(GLUE_OBJS) $(DISPLAY_OBJS) $(TTM_OBJS) $(CORE_OBJS)

.PHONY: all clean check display core ttm

all: libamdgpu_dc_redox.so

 libamdgpu_dc_redox.so: $(GLUE_OBJS)
	@set -e; \
	success=0; failed=0; \
	for src in $(DISPLAY_SRCS); do \
		obj=$$(basename "$${src%.c}.o"); \
		if $(CC) -c $(CFLAGS) "$$src" -o "$$obj"; then \
			success=$$((success + 1)); \
		else \
			failed=$$((failed + 1)); \
			echo "ERROR: failed to compile $$src"; \
			exit 1; \
		fi; \
	done; \
	for src in $(TTM_SRCS); do \
		obj=$$(basename "$${src%.c}.o"); \
		if $(CC) -c $(CFLAGS) "$$src" -o "$$obj"; then \
			success=$$((success + 1)); \
		else \
			failed=$$((failed + 1)); \
			echo "ERROR: failed to compile $$src"; \
			exit 1; \
		fi; \
	done; \
	for src in $(CORE_SRCS); do \
		if [ -f "$$src" ]; then \
			obj=$$(basename "$${src%.c}.o"); \
			if $(CC) -c $(CFLAGS) "$$src" -o "$$obj"; then \
				success=$$((success + 1)); \
			else \
				failed=$$((failed + 1)); \
				echo "ERROR: failed to compile $$src"; \
				exit 1; \
			fi; \
		fi; \
	done; \
	echo "AMD DC: compiled $$success files successfully"; \
	$(CC) $(LDFLAGS) -o $@ $$(find . -maxdepth 1 -name '*.o' -size +0c) $(LDLIBS)

redox_stubs.o: redox_stubs.c redox_glue.h
	$(CC) -c $(CFLAGS) $< -o $@

amdgpu_redox_main.o: amdgpu_redox_main.c redox_glue.h
	$(CC) -c $(CFLAGS) $< -o $@

check: $(GLUE_OBJS)
	$(CC) -fsyntax-only $(CFLAGS) amdgpu_redox_main.c
	$(CC) -fsyntax-only $(CFLAGS) redox_stubs.c

clean:
	rm -f *.o libamdgpu_dc_redox.so